Dr. Robert Costanza is propably the world leading ecological economist, writer of a.o. the standard book An Introduction to Ecological Economics
Lord Nicolas Stern is the author of the 700 page Stern Review: The Economics of Climate Change
On BBC World Radio A.C.Grayling talks to Rajendra Pachauri, Chair of the Intergovernmental Panel on Climate Change.
Pachauri is a promoter of 350.org
Rob Vos is head of the UN Department of Economic and Social Affairs (DESA)
Naomi Klein is the writer of the famous books no logo and The Shock Doctrine
In this interview she talks about a.o. climate debt.
BBC World Radio, HardTalk, interview with Abdalmahmood Mohamed, chairman of the G77.
The reporter does not understand anything, or pretends very good not too, but the G77 has a clear message. (The second part is about Sudan, nothing to do with climate change.)